It's a 96. If I can identify the electronics, I may be able to get manuals and tune this behavior out. I think it is timing. The problem just surfaced a few days ago, and she's had this car for several months.
On Jul 12, 2009, at 11:21 AM, "Larry Alster" <[email protected]> wrote: > What year car?? > > Janice's 92 with the JR has started to exhibit a symptom that I'm > not sure > about. > > It's running a AFPR/Pierburg pump with 1.8 injectors and a Bipes. > > Car has been fine for years but lately and it is getting worst the car > exhibits the following symptom. > > Idles fine > Cruises fine > Accelerates through boost fine with a gradual increase on the gas > pedal > Stumbles and then accelerates fine if you stomp the gas pedal to the > floor > from a cruise no boost condition > > Boost builds fine with no issues, reaches 6 psi boost okay, FP is > running > fine now that I changed the AFPR for one that actually worked. > > > > Larry > > White Knight 1991 Crystal White #99 CSP > Silver Bullet 1992 Silverstone #17 SM2 FM I+ Turbo > Honey B 1992 Sunburst Yellow #99 SM2L JR Supercharger > Whooosh 2004 Titanium Mazdaspeed MX-5 > > LowCountry Miata http://www.lowcountrymiataclub.net > Masters Miata > RAGS 074 > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Chad J. > Douglas > Sent: Sunday, July 12, 2009 10:00 AM > To: Miata List Power > Subject: JR supercharger issues > > > A friend has a hotside JR supercharger that was installed on the car > when she bought it. > > I am not really familiar with all the available JR goodies available, > so I'm not sure what all is installed. The SC has the standard pulley > and the car makes abou 5-7 pounds of boost. > > Behind the passenger seat is a brain box that has a vacuum line > feeding it and a knob. > > I'm trying to identify this hardware so I can get some documentation. > > The car recently began hesitating and missing in boost. I found that > the coil pack was loose and replaced the plugs and wires. The problem > persists but is greatly reduced. I even went with a 0.035 spark plug > gap when installing the new plugs and used a 5 heat range plug. > > Any ideas about what this hardware behind the seat is, or what to > check next? > _______________________________________________ > Miatapower mailing list > [email protected] > http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower > _______________________________________________ Miatapower mailing list [email protected] http://list.miatapower.net/cgi-bin/mailman/listinfo/miatapower
